WO2017071204A1 - Method for downloading email attachment on mobile terminal - Google Patents

Abstract

The present invention provides a method and device for downloading an email attachment on a mobile terminal, said method for downloading comprising: receiving an attachment download request; determining the size of an attachment, and if the size of said attachment is larger than a preset threshold value, then downloading the entire email file from a network-side server; analyzing the entire email file and extracting said attachment. In the method and device for downloading an email attachment on a mobile terminal of the present invention, a file of the entire email file is downloaded from the server when the attachment exceeds a preset threshold value; then the attachment is obtained by means of local analysis; thus the restrictions of existing email protocols are overcome, such that a user may view a large attachment file on a mobile terminal.

Description

Download method of mail attachment of mobile terminal

The present application claims the priority of the Chinese Patent Application No. PCT Application No.

Technical field

The present invention relates to a download method and apparatus, and more particularly to a method and apparatus for downloading an email attachment of a mobile terminal.

Background technique

At present, with the wide application of mobile terminals, the mail system used only on computers has been widely used in various mobile terminals, but in view of the limitation of the mail protocol on the currently used mobile terminal, for larger attachments, Many mobile terminals cannot download large attachments at all, thus seriously affecting the user's use of email attachments.

Summary of the invention

It is an object of the present invention to provide a method and apparatus for downloading an email attachment of a mobile terminal, so that downloading of a large attachment can be implemented on the mobile terminal.

In order to achieve the above object, the present invention provides a method for downloading an email attachment of a mobile terminal, including:

Receiving an attachment download request;

Judging the size of the attachment, if the size of the attachment is above a preset threshold, downloading the complete mail file from the server on the network side;

Parsing the complete mail file and extracting the attachment.

The present invention also provides a downloading device for an email attachment of a mobile terminal, comprising:

An attachment download request receiving module, configured to receive an attachment download request;

a judging module for judging the size of the attachment;

a first downloading module, configured to: when the determining module determines that the size of the accessory is greater than a preset threshold, download a complete mail file from a server on the network side;

The parsing module is configured to parse the complete mail file and extract the attachment.

The method and device for downloading an email attachment of the mobile terminal of the present invention, the email attachment exceeds the pre- In the case of threshold, the file of the complete mail file is downloaded from the server, and then the attachment is obtained through local parsing. In this way, the limitation of the existing mail protocol is broken, so that the user can view the large attachment file on the mobile terminal.

DRAWINGS

1 is a schematic flowchart of a method for downloading an email attachment of a mobile terminal according to Embodiment 1 of the present invention;

2 is a schematic structural diagram of a device for downloading an email attachment of a mobile terminal according to Embodiment 2 of the present invention.

detailed description

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

The principle of the embodiment of the present invention is to achieve a mirror effect with a specific color by alternately plating a titanium oxynitride coating layer and a silicon oxynitride coating layer on the lower surface of the glass substrate, while ensuring insulation and overall The thickness of the coating is controlled to a very thin range, thereby reducing the impact on fingerprint detection.

Embodiment 1

The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

A complete mail file contains the header information (sender, recipient, sending time, etc.), mail body, email attachment, and so on. The full mail file is stored in the Mime (Multipurpose Internet Mail Extensions) format. In the general mail receiving and dispatching system, the mail protocol is used to interact with the server to separately request and transmit the content of the mail header, the mail body, and the mail attachment. The information of the mail can be obtained separately, for example, if only the header information is desired, the Exchange protocol is allowed. Under the Exchange protocol of the mail provided by Microsoft, the mobile terminal uses the sub-protocol of ActiveSync as a communication bridge for communication between the client and the server.

The user synchronizes all the folder information under the account on the mobile terminal through some interface methods provided by the protocol, and each folder contains a unique ID identifier that the server can recognize. Through this ID identification, the client uses ActiveSync. Some interfaces provided can obtain the header information of the owned mail under this folder and the unique identifier of the attached file on the server, for example, 14%3a53%3a2, and the general mobile terminal manufacturers pass this standard. I know from the server to download attachments, but there are some servers that have size requests for this method, usually about 10M. Once the size of the attachment exceeds 10M, the server rejects the download request from the client, and the client fails to download.

In this case, in the embodiment of the present invention, the size of the attachment is pre-determined. If the attachment is larger than a preset threshold (for example, 10M), the complete mail file is downloaded from the server by other means, and local analysis is performed. , extract attachments are provided to the user.

Embodiment 1

FIG. 1 is a schematic flowchart diagram of a method for downloading an email attachment of a mobile terminal according to Embodiment 1 of the present invention. The download method of this embodiment includes:

Step 101: Receive an attachment download request, for example, the user triggers an attachment download request by clicking on the attachment.

Step 102: judging the size of the attachment;

Step 103: If the size of the attachment is above a preset threshold, download the complete mail file from the server on the network side.

Step 104: Parse the complete mail file, extract the attachment, and then end.

By the method of the embodiment, if the email attachment exceeds the preset threshold, the file of the complete mail file is directly downloaded from the server, and then the attachment is obtained through local parsing. In this way, the limitation of the existing mail protocol is broken, so that Users can view large attachment files on the mobile terminal.

Further, in step 103, the process of downloading the complete mail file from the server on the network side may include: acquiring first identification information of the complete mail file from the locally stored pre-downloaded file information; using the first identification information, The server on the network side downloads a download request for sending a complete mail file; and receives the complete mail file.

On the mobile terminal side, when storing the related information of the mail, the client has stored a unique identification ID (referred to as first identification information in the present embodiment) of the complete mail file on the server, for example, "14% 3a156%" 3a2", when the client receives the mobile terminal user needs to request to download an attachment larger than 10M, the first identification information of the locally stored mail can be obtained, and the complete mail file download request is sent through the method interface provided by ActiveSync, which will be complete. The mail file is downloaded (including the header information, text, attachments, etc.), The format of the complete mail file is MINE format, and then the program content (such as MINE file parser) is used to extract the contents of the attachment.

Further, in many cases, there are multiple attachments to the mail, and the large attachments to be downloaded are determined in the complete mail file, and then extracted and presented to the user. Specifically, the following two methods may be used:

1) Extract by the unique representation of the attachment, as follows:

Acquiring the second identification information corresponding to the attachment from the pre-downloaded file information, and then parsing the complete mail file, and extracting the requested attachment according to the second identification information. The pre-downloaded file information mentioned here may be the header information or the information included in the mail synchronization folder.

2) Extract by the location information of the attachment, as follows:

Obtaining the location information of the attachment from the pre-downloaded file information, parsing the complete mail file, and extracting the requested attachment according to the location information. The attachment is stored in a certain order. When the user triggers the download request of an attachment, the location of the attachment has been determined. According to the location information, the corresponding attachment can be found in the parsed mail file and presented to the user. .

In addition, in step 102, if it is determined that the size of the accessory is less than a preset threshold (for example, 10M), step 105 may be performed: downloading the server from the server on the network side by using the second identifier information corresponding to the accessory. Attached.

It should be noted that the focus of the embodiment of the present invention is on the processing of the case where the accessory exceeds the preset threshold, and for the case of less than the preset threshold, any additional downloading method in the prior art may be used. The method of treating large attachments of the present invention is used.

Here's a simple application example:

For example, a mail M has attachments A, B, and C, and the size is 1M, 20M, and 2M respectively. If the user requests to download A or C, it can be downloaded in the traditional way. If the user requests to download the attachment B, we know at this time. The location of B is the second, and the client sends a request to download the complete mail file M (here, the request is R) to the server, and after the download is completed, the M is stored locally. Then, the client uses the Mime format parser to parse the content of the M, extracts the content of the second attachment, and stores the content as an attachment in the storage space of the mobile terminal, notifying the user that the attachment is downloaded.

A simple example of requesting the server to download the entire mail file (simply requesting R):

Embodiment 2

As shown in FIG. 2, it is a schematic structural diagram of a downloading device for an email attachment of a mobile terminal according to a second embodiment of the present invention. The device includes: an attachment download request receiving module 11 for receiving an attachment download request; and a determining module 12 for The size of the attachment is determined; the first downloading module 13 is configured to: when the determining module determines that the size of the accessory is greater than a preset threshold, download the complete mail file from the server on the network side; the parsing module 14 Used to parse the complete mail file and extract the attachment.

The first download module 13 may include:

The first identifier information module is configured to obtain the first identifier information of the complete mail file from the locally stored pre-downloaded file information, and the mail download request module is configured to download and send the complete information to the server on the network side by using the identifier information. a download request of the mail file; the mail receiving module receives the complete mail file.

Further, the parsing module 14 may have the following two configurations according to different attachment extraction modes.

Manner 1: The parsing module 14 can include:

a second identifier information acquiring module, configured to acquire second identifier information corresponding to the attachment from the pre-downloaded file information;

The first parsing unit is configured to parse the complete mail file, and extract the requested attachment according to the second identifier information.

Manner 2: The parsing module 14 can include:

a location information obtaining module, configured to obtain location information of the accessory from the pre-downloaded file information;

And a second parsing unit, configured to parse the complete mail file, and extract the requested attachment according to the location information.

In addition, for the case that the accessory is smaller than the preset threshold, the downloading device of the embodiment may further include:

The second downloading module 15 is configured to download the accessory from the server on the network side by using the second identifier information corresponding to the accessory, if the determining module determines that the size of the accessory is less than a preset threshold.

One of ordinary skill in the art will appreciate that all or part of the steps to implement the various method embodiments described above may be accomplished by hardware associated with the program instructions. The aforementioned program can be stored in a computer readable storage medium. The program, when executed, performs the steps including the foregoing method embodiments; and the foregoing storage medium includes various media that can store program codes, such as a ROM, a RAM, a magnetic disk, or an optical disk.

Finally, it should be noted that the above embodiments are merely illustrative of the technical solutions of the present invention, and are not intended to be limiting; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art will understand that The technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or substitutions do not deviate from the technical solutions of the embodiments of the present invention. range.

Claims (11)

A method for downloading an email attachment of a mobile terminal, comprising: Receiving an attachment download request; Judging the size of the attachment, if the size of the attachment is above a preset threshold, downloading the complete mail file from the server on the network side; Parsing the complete mail file and extracting the attachment. The downloading method according to claim 1, wherein the processing of downloading the complete mail file from the server on the network side comprises: Obtaining first identification information of the complete mail file from the locally stored pre-downloaded file information; Using the first identifier information, downloading a download request for sending a complete mail file to the server on the network side; Receive the complete mail file. The downloading method according to claim 1, wherein the processing of parsing the complete mail file and extracting the requested attachment comprises: Obtaining second identifier information corresponding to the attachment from the pre-downloaded file information; Parsing the complete mail file, and extracting the requested attachment according to the second identification information. The downloading method according to claim 1, wherein the processing of parsing the complete mail file and extracting the requested attachment comprises: Obtaining location information of the attachment; Parsing the complete mail file and extracting the requested attachment according to the location information. The downloading method according to claim 1, wherein if the size of the accessory is smaller than the preset threshold, downloading the accessory from the server on the network side by using the second identification information corresponding to the accessory . The downloading method according to any one of claims 1 to 5, characterized in that the format of the complete mail file is the MINE format. A device for downloading an email attachment of a mobile terminal, comprising: An attachment download request receiving module, configured to receive an attachment download request; a judging module for judging the size of the attachment; a first downloading module, configured to: when the determining module determines that the size of the accessory is greater than a preset threshold, download a complete mail file from a server on the network side; The parsing module is configured to parse the complete mail file and extract the attachment. The downloading apparatus according to claim 7, wherein the first downloading module comprises: a first identifier information module, configured to obtain first identifier information of the complete mail file from the locally stored pre-downloaded file information; a mail download requesting module, configured to download, by using the identifier information, a download request for sending a complete mail file to a server on the network side; The mail receiving module is configured to receive the complete mail file. The downloading apparatus according to claim 7, wherein the parsing module comprises: a second identifier information acquiring module, configured to acquire second identifier information corresponding to the attachment from the pre-downloaded file information; The first parsing unit is configured to parse the complete mail file, and extract the requested attachment according to the second identifier information. The downloading apparatus according to claim 7, wherein the parsing module comprises: a location information obtaining module, acquiring location information of the accessory; And a second parsing unit, configured to parse the complete mail file, and extract the requested attachment according to the location information. The downloading device according to claim 7, further comprising: And a second downloading module, configured to download the accessory from the server on the network side by using the second identifier information corresponding to the accessory, if the determining module determines that the size of the accessory is less than a preset threshold.

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